Double cushioned shoe heel or lift



M. e. HART. I

. DOUBLE CUSHI D SHOE HEEL 0R U'FT.

APPLICATI LED MAR. 15, 1921.

1,422,854, I PatentedJu1y18,1922.

errata,

MAX G. HART, OF ELYEIA, OHIO.

DOUBLE CUSHIONED SHOE HEEL OR LIFT.

iaeassi.

Specification of Letters Patent.

PatentedJuly is, ieaa Application filed March 15, 1921. Serial No. 452,453..

To all whom it may concern:

Be it known that i, MAX G. HART, a citizen of the United States of America, and resident of Elyria, in the county of Lorain and State of ()hio, have invented certain new and useful Improvements in Double Cushioned Shoe Heels or Lifts, of which the following is a specification.

I, the inventor of this rubber heel orlift,

being of the opinion that up to the present being protected from wear by a second or lower part of the lift composed of wear resisting material and constituting the wearing surface of the lift and between the above mentioned sections, a compensating space exists.

It is a further object of this invention to provide the upper component section of the rubber heel or lift lying above the compensating chamber of soft rubber or other suitable material, this cushion acting as the main cushion of the lift.

It is a further object of this invention to form a rubber heel or lift with the lower or wearing surface section composed of rubber or other suitable material, the degree of resiliency of whichis different from the top section of the lift, this section being low resilient material and high in wear resisting qualities. Each of these sections are vulcanized or otherwise permanently attachedto each other at the outer edge of the lift with the compensating chamber opening at the frontedge of the lift.

It is a further object of this invention to provide the central section of the lift with space to be known as a compensating chamber, the purpose of which is to provide a variable adjustment between the upper and lower sections of the lift, so that when the lift has been attached to the shoe heel, this compensating space will have absorbed a pressure from the face of the lift and Wlll further act as an adjustment between the upper and lower sections when the lift'is in usage.

It is a further object of this invention to employ a bottom or outer surface of irregular contour, which, through the action of applying the hit, inverts 'itself'and nearly closing the compensating chamber space.

It is a further objectof' this invention to produce a shoe heel or lift having a double cushion effect, the compositions having the diflerent characteristics being joined to gether to form an integral heel having the interposed compensating chamber.

With the foregoing and other obiects in View, the invention consists in'the details of construction, and in the arrangement and combination of parts to be hereinafter more fully set forth and claimed. 1 In describing the invention in detail, reference will be had to the accompanying drawings forming part of this application wherein like characters denote correspondmg parts in the several views, and in which l Figure 1 illustrates a viewin elevationof a heel. embodying the invention;

Figure 2 illustrates a sectional view on the line22ofFig.l;

Figure 3 illustrates a sectional view on the line 83 of Fig. 2; c

Figure 4 illustrates a top plan view of the heeldetached from the shoe; and t Figure 5 illustrates a perspective View of the heel inverted.

In these drawings A denotes the upper portion of the cushion heel section, which, as indicated heretofore, is composed'of rubber or other suitable material having hio'h elasticity and shock absorbing qualities, and

B denotes the lower section or half having wear resisting qualities and istherefore more dense and. unyielding than the portionA. There is a compensating chamber C formed between the sections A and B and the said sections A and B are vulcanized or otherwise connected together at the marginal edge of the compensating chamber.

The section B has a plurality of apertures D for receiving fastenings by which the heel or lift is secured to a shoe. These several openings penetrate through section B and are supplied with metal disks embedded within section B which engage the heads of the attaching instrumentalities. These openings D are so centrally located on the surface of section B as to pass through the compensating chamber space, the attaching instrumentalities being driven through section A and into the heel of a shoe.

The bottom or outer face of the section B is irregular in contour and the area within the points 1, 2, 3, and 4;, (Fig. 5) is rounded from the outer edge of the lift to the center and it has as its extreme extension that surface of the lift lying between the points 5 and 6, and it may be best described as being alined between the central surface of the lift (point 5) and the front of the lift at the center (point 6). The curvature radiates by extending from the central point 5 to the outer edge of the lift between the points 2 ande, whereas the surface is the same contour through the line between points 5 and 6.

The side wall or edge of the lift consists of two different angles with relation to the attaching face of the lift; the first being a right angle from the attaching face of the lift (points 1 and 2) and its extent being between those points alone. The point 2 may be described as being approximately in the middle of the edge of the lift and from this central point to the bottom edge of the lift the angle is changed with relation to the attaching face and it extends at right angles to a plane on the wearing surface of the lift drawn to the central points 5 and 6 from the edge of the lift and following in outline the curvature of the surface.

The compensating space, which is the central portion of thelift, has an upper wall, the surface of which is an inverse condition of the same area on the face of section B. The lower wall is horizontally disposed to theface of section A, and when pressure is applied to the outer section through the action of attaching the lift to the shoe heel, the clearance afforded by the compensating space allows a yielding action to this section of the lift in order that the two sections may be forced into contact by the application of the fastenings through the heel.

The relation of the edge of the section B to the edge of the sect-ion A is well shown in Figs. 1 and 3, and the contour of the outer or wearing surface of the section B is heel is flat.

also well shown in the drawing, and the advantages of the device will, it is thought, be apparent to one skilled in the art.

The object of the slight flare on the edge of the heel prior to its being secured to a shoe is to allow for the distortion of the heel when the anchoring means such as nails secure it permanently in position. The slight flare is related to the rounded surface of the heel in that with the nailing down or securing of the heel, the rounded condition disappears and the tread surface of the This action exerts a drawing or pull on the edge of the heel which takes up the flare of the lower section which then stands at right angles from the attaching or wearing surface of the heel.

I claim:

1. In a shoe heel or lift having integral upper and lower portions of di'lferent elasticity, the said portions being separated along the front edge of the heel with an interposed compensating chamber.

2. A shoe cushion heel comprising an upper portion of relatively high elasticity, a lower portion of relatively high wear resistant quality integral therewith, except on one of its edges and having a compensating chamber therebetween.

8. A cushion heel comprising an upper portion of relatively high elasticity, a lower portion of relatively high wear resistant quality, the said portions being integral at their edges except on the front edge and having a compensating chamber therebetween, the tread surface of the said lower portion before being nailed to a shoe being irregularly rounded from the front edge of the heel on a plane, to a point near the center, and the said surface receding rearwardly from the approximate center.

4. A cushion heel composed of rubber or other suitable materials of high elasticity and other material of high wear resistant quality, the said heel having a compensating chamber between the materials of different character, the said lower portion having its tread surface rounded laterally from the front edge to a point near the center and curved from the approximate center to the rear edge.

MAX G. HART. 

